百里酚对冷藏大菱鲆鲜度和货架期的影响  

Effect of thymol on freshness and shelf life of turbot(Scophthalmus maximus) during cold storage

作　　者：蒋慧亮[1,2] 李学英[2] 杨宪时[2] 迟海[2] 

机构地区：[1]大连海洋大学食品工程学院,辽宁大连116023 [2]中国水产科学研究院东海水产研究所,上海200090

出　　处：《食品工业科技》2012年第14期327-330,375,共5页Science and Technology of Food Industry

基　　金：国家自然科学基金项目(30771675);中央级公益性科研院所基本科研业务费专项资金(中国水产科学院东海水产研究所2011M04)

摘　　要：以感官评价、挥发性盐基氮(TVBN)、三甲胺氮(TMA)、菌落总数、产H2S细菌数和抑制指数(I.I)为指标,分别研究对照组(蒸馏水浸泡)和保鲜组(1g/kg百里酚溶液浸泡)大菱鲆冷藏(3℃)过程中的鲜度变化和货架期,以探讨百里酚对大菱鲆的保鲜效果。结果表明,对照组和保鲜组大菱鲆分别在259、309h达到高品质期终点,于403、572h达到货架期终点,百里酚浸泡后大菱鲆货架期延长了169h;对照组和保鲜组大菱鲆达到高品质期终点时的TVBN值分别为13.60、10.70mg/100g,货架期终点时分别为32.69、35.87mg/100g;高品质期终点时的TMA值分别为1.26、1.05mg/100g,货架期终点时分别为6.57、7.57mg/100g;高品质期终点时的菌落总数分别为7.65、6.59lg(CFU/g),货架期终点时分别为8.27、8.56lg(CFU/g);高品质期终点时的产H2S细菌数分别为7.15、5.41lg(CFU/g),货架期终点时分别为7.37、6.13lg(CFU/g)。浸泡后初始点百里酚对菌落总数和产H2S细菌的抑制指数分别为57.02%和100%,对照组高品质期终点分别为16.34%和45.73%,对照组货架期终点时分别为4.72%和19.72%。Freshness changes and shelf life of turbot（Scophthalmus maximus） were investigated by testing the indexes of sensory evaluation,total volatile base nitrogen （TVBN）,trimethylamine （TMA）,total aerobic counts, H2S-producing bacteria and inhibition index（Ⅰ.Ⅰ） during storage at 3℃,compared control group（C） that dipped into distilled water with the fresh group（F） dipped into lg/kg thymol solution,then inquired into the fresh effects of thymol to turbot. The results showed that quality of turbot still was in high condition on 259 and 309h, respectively,and quality achieved unacceptable on 403 and 572h at their end of shelf life,which prolonged 169h compared F with C after dipping into thymol. At the end of good quality life,the values of TVBN were 13.60,10.70mg/100g,and 32.69,35.87mg/100g at the end of shelf life,respectively. The values of TMA reached 1.26,1.05mg/100g at the end of good quality,and 6.57,7.57mg/100g at the end of shelf life,respectively. The counts of total aerobic counts were 7.65,6.591g（CFU/g） at the end of good quality and 8.27,8.561g（CFU/g） at the end of shelf life, respectively. The counts of H^S-producing bacteria were 7.15,5.411g （CFU/g） at the end of good quality life, 7.37,6.131g （CFU/g） at the end of shelf life, respectively. Moreover,at the beginning of storage the inhibition indexs of total aerobic counts and H2S-producing bacteria were 57.02% and 100% ,and they were 16.34% ,45.73% at the end of good quality life of control,4.72% and 19.72% at the end of shelf life of control, respectively.

关 键 词：大菱鲆 百里酚 冷藏 鲜度变化 货架期 

分 类 号：TS254.4[轻工技术与工程—水产品加工及贮藏工程]